AP CSA Unit 1 Day 8: Substring With Length Based Indices
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Advanced Practice Question
String s = "coding";
int mid = s.length() / 2;
System.out.println(s.substring(mid - 1, mid + 2));This question tests your understanding of computed indices. The correct answer demonstrates precise knowledge of how Java handles substring with length-based indices.
Students often make errors with substring with length-based indices by not carefully tracing execution or understanding the underlying concept.
This Cycle 2 HARD question requires careful attention to detail and understanding of how Java behaves in this scenario.
For questions testing substring with length-based indices, always trace execution step-by-step. Write down intermediate values. Don't skip steps - the AP exam rewards precise understanding of Java behavior.
Master This Topic
This Cycle 2 HARD question tests substring with length-based indices. Review Unit 1 concepts to build mastery of primitive types, objects, and String manipulation.
- Understanding computed indices
- Tracing code execution accurately
- Avoiding common pitfalls
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Cycle 2 questions prepare you for the hardest AP CSA exam questions.
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